Thanks for clarifying that — I stand corrected. I should have made a more general statement about how state officials are the only ones who can issue pardons and commutations for state crimes.
Presidential power to grant pardons, which is enumerated in Article II, Section 2 of the U.S. Constitution, is nearly unlimited and cannot be checked by any other branch of government.
Read more: Presidential Pardons Infoplease.com http://www.infoplease.com/us/government/presidential-pardons.html#ixzz1RWW2Oq00